This is Logopedia's criteria for deletion.
General
Wrong title
Titles or filenames can be wrong. For example: G-TV is the right title but the wrong title is Weneniers, Karada, etc.
Type {{delete|Wrong title}} or {{speedydelete|wrongtitle}} on the page.
Vandalism
Page vandalism can have fake/fanon/imaginary logos.
Type {{delete|Fake logo}}, {{delete|Fanon logo}}, {{delete|Vandalism}}, {{speedydelete|vandalism}}, or {{speedydelete|fakelogo}} on the page.
Articles
Non-notable
Articles about a non-notable subject
Type {{delete|Not notable}} or {{speedydelete|Not notable}} on the page.
Non-notable (same person)
Websites that are not notable, but editors seem to be the same person.
Type {{delete|not notable, editors seem to be the same person}} on the page.
Parody soda
Articles about parody soda.
Like logo histories of parody sodas such as the parodies of the following sodas: Coca-Cola, Dr. Pepper, Sprite, Pepsi, Fresca, Diet Coke, etc.
Type {{delete|Parody soda. ~~~~}} on the page.
Type {{delete|Parody soda}} on the page to suppress the signature and timestamp.
Files
Plain text
That image could be a plain text, but that's not logos.
Type {{delete|that's not a logo, it's plain text}} or {{speedydelete|text}} on the page.
Fake logo
That means the logo was uploaded as an imaginary, fake or fanon logo.
Type {{delete|Fake logo}} or {{delete|Fanon logo}} on the page.
Person image
A picture of a person, a pet, an animal, a bug, a huggable, a doll, a puppet.
Type {{delete|that's not a logo, it's a person, a bug, or an animal}} or {{speedydelete|Personimage}} on the page.
Parody soda logos
Logos of parody sodas, such as the logos of parodies of the following sodas : Coca-Cola, Sprite, Dr. Pepper, etc.
Type {{delete|Parody soda logo}} on the page.
Non-logos
Images of non-logos
Type {{delete|non-logo}} on the page.
Templates
Template can't work
Used for templates that won't work.
Type {{delete|this Template won't work}} or {{delete|Template won't work}} on the page.
Nothing to do
Used for templates that nothing to do with Logopedia.
Type {{delete|Nothing to do with Logopedia}} or {{speedydelete|nothing}} on the page.
Spam template
Used for templates with spam and advertising.
Type {{delete|this Template contains spam}} on the page.